2014: Thunderstorms in the High Desert produced flash flooding along Highway 247 in Landers.
2007: A major heat wave struck the mountains and deserts (of Southern California) from 7.2 to 7.6.
A strong persistent marine layer precluded the heat wave from impacting the coasts and valleys.
During this time the temperature reached 119° F in Ocotillo Wells, 116° F in Palm Springs and Indio, 115° F in Anza Borrego, 107° F in Julian, 103° F at Lake Cuyamaca, 100° F at Idyllwild, 97° F at Palomar Mountain, 94° F at Big Bear Lake (tied all time high) and Mt. Laguna.
Some heat illnesses occurred, but were poorly documented.
2007: The high temperature at Reno, NV, was 108° F.
2007: An all-time record high of 118° F was recorded at Ash Mountain (Three Rivers, Tulare Co.).
2006: A thunderstorm produced one inch hail and 40-50 mph winds near Boulevard and Tierra del Sol (San Diego Co.).
2001: Heavy rains from thunderstorms produced flash flooding over parts of Mohave County, AZ (Bullhead City, etc.).
Area washes were running around a foot deep and some flooding was reported on roads.
2001: 2.2" of rain fell in 15 minutes in Pine Mountain at the Kern County Fire Department.
Water over a foot deep was reported on most streets in town.
1999: Vallejo had a low temperature of 49° F.
1967: A heavy thunderstorm produced a rainfall of 1.25" in one hour at Twentynine Palms.
Highway 62 was washed out and closed east of town.
1965: California Highway Patrol officers reported two tornadoes nawer the tiny community of Ogilby in Imperial County.
Damage was limited to 3 downed power poles.
1923: It was 39° F in Santa Ana, the lowest temperature on record for July.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego